Now in paperback, a biography of the German scientist who came up with the idea of continental drift, telling of how he ended up journeying to Greenland in the winter of 1930-and died there. How, in 1930, did Alfred Wegener, the son of a minister from Berlin, find himself in the most isolated spot on earth, attempting to survive an unthinkably cold winter in the middle of Greenland? In All the Land, Jo Lendle sets out to chronicle Wegener's extraordinary journey from his childhood in Germany to the most unforgiving corner of the planet. As Lendle shows, Wegener's life was anything but ordinary. Surrounded by children at the orphanage his parents ran, Wegener was driven by his scientific spirit in search not only of answers to big questions but of solitude. Though Wegener's life ended in tragedy during his long winter in Greenland, he left us with a scientific legacy: the theory of continental drift, mocked by his peers and only recognized decades after his death. Lendle gives us the story of this great adventurer, of the experiences that shaped him, resulting in a tale that is both thrilling and tender.

Rice has supported a greater number of people for a longer period of time than any other crop. Nearly half of the global population is dependent on rice as its major staple food. While Asia remains the main centre of production and consumption of rice, the importance of rice is increasing rapidly in Africa and Latin America, and exports of rice from the United States and Australia are of major importance to the world rice trade. This book explores the factors which have contributed to the sustainability of rice production over the eight or nine thousand years for which rice has been produced. Sustainability is defined as the maintenance or improvement of production levels and protection of natural resources, within the context of economic viability and social acceptability. The author covers a wide range of issues, including soil fertility, plant breeding, pest management, irrigation, land degradation and social and economic factors. Greatest emphasis is placed on the special features of wetland rice production, and the importance of the nutrient balance. It is also shown that without the Green Revolution there would have been a period of mass starvation in Asia, a problem which continues to threaten and which will be unavoidable unless the successes of the Green Revolution can be sustained. The book provides a unique review of the sustainability of the production of the world's most important crop, and should be of interest to students, research workers and policy makers in agriculture, soil science, and agricultural economics and food policies, as well as all interested in development in the third world.

After the 1998 flood of the Yangtze River, one of the world s most important rivers, environmental experts realized that, to control flooding, much more attention must be paid to vegetation cover on bare lands, thin forest land, and shrub-covered land in mountain areas. In 1999, an environmental monitoring project of the forests in 11 provinces of the Yangtze River basin was undertaken. This book reports on soil loss prediction and the successful practices of soil loss control in eastern China in recent years.

The book requires only rudimentary physics knowledge but ability to program computers creatively and to keep the mind open to simple and not so simple models, based in individuals, for the living world around us.
* Interdisciplinary coverage
* Research oriented
* Contains and explains programs
* Based on recent discoveries
* Little special knowledge required besides programming
* Suitable for undergraduate and graduate research projects

Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 138.Subduction zones helped nucleate and grow the continents, they fertilize and lubricate the earth's interior, they are the site of most subaerial volcanism and many major earthquakes, and they yield a large fraction of the earth's precious metals. They are obvious targets for study--almost anything you learn is likely to impact important problems--yet arriving at a general understanding is notoriously difficult: Each subduction zone is distinct, differing in some important aspect from other subduction zones; fundamental aspects of their mechanics and igneous processes differ from those in other, relatively well-understood parts of the earth; and there are few direct samples of some of their most important metamorphic and metasomatic processes. As a result, even first-order features of subduction zones have generated conflict and apparent paradox. A central question about convergent margins, for instance--how vigorous magmatism can occur where plates sink and the mantle cools--has a host of mutually inconsistent answers: Early suggestions that magmatism resulted from melting subducted crust have been emphatically disproved and recently just as emphatically revived; the idea that melting is fluxed by fluid released from subducted crust is widely held but cannot explain the temperatures and volatile contents of many arc magmas; generations of kinematic and dynamic models have told us the mantle sinks at convergent margins, yet strong evidence suggests that melting there is often driven by upwelling. In contrast, our understanding ofwhy volcanoes appear at ocean ridges and "hotspots"--although still presenting their own chestnuts--are fundamentally solved problems.

Agricultural ecology, or agroecology, deals in general with the structure and function of agroecosystems at different levels of resolution. In this text/reference, the authors describe in terms of agroecology the tropical environments of sub-Saharan Africa, Southeast Asia, and Latin and Central America, focusing on production and management systems unique to each region.

Sediments and Ecohyraulics is comprised of papers submitted to the 6th International Conference on Cohesive Sediments (INTERCOH 2005) held in Saga, Japan, September 2005. The papers are divided into two major categories. The first is basic processes, including erosion, settling, flocculation, and consolidation. The second major catagory is application of the understanding of cohesive sediments to address specific issues, including waterway and part management, fluid mud behavior, and contaminiated sediment management.
*Provides an up-to-date resource of the present knowledge of cohesive sediment transport processes
*Contains practical solutions on cohesive transport problems
*Presents information on managing cohesive sediments